CN103217427B - Detection method after FPC Laser Processing - Google Patents
Detection method after FPC Laser Processing Download PDFInfo
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- CN103217427B CN103217427B CN201210015730.XA CN201210015730A CN103217427B CN 103217427 B CN103217427 B CN 103217427B CN 201210015730 A CN201210015730 A CN 201210015730A CN 103217427 B CN103217427 B CN 103217427B
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 title claims abstract description 23
- 239000011521 glass Substances 0.000 claims abstract description 62
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 230000000750 progressive effect Effects 0.000 claims description 7
- 230000004069 differentiation Effects 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000035772 mutation Effects 0.000 claims description 3
- 230000005520 electrodynamics Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to the detection method after a kind of Laser Processing of FPC, mainly solve the problems, such as that laser machining FPC in the prior art cannot be close to scanner glass surface, a kind of detection method of the present invention after being laser machined using FPC, it is fixed using absorption type lamp box before detection, the lamp box includes glass surface, the glass surface has dot matrix aperture, there is getter device near glass surface side in lamp box, it is placed on the technical scheme that the FPC of lamp box glass surface can be adsorbed on the glass surface under getter device suction condition, preferably solve the problem, can be used in Laser Processing industry.
Description
Technical field
The present invention relates to the detection method after a kind of Laser Processing of FPC.
Background technology
In Laser Processing（Cutting, drilling etc.）Industry, it is possible to use high accuracy scanner is scanned to the product processed,
As shown in figure 1, face pressure is put lamp box and can obtain better image effect on the scanner, the high resolution graphics that then will be obtained
Picture, is contrasted by software with cad file.Software can accomplish the vector quantization identification of image split shed, by choosing at 2 points
（If or doing）After contraposition, the opening in CAD can one by one be contrasted with the opening of identification on image, be detected its position
Whether precision and openings of sizes are qualified.For rigid product, such as steel disc, Detection results are all fine, but detection flexible circuitry
During plate, its flexibility result in flexible board can not be close to the glass surface of scanner, as shown in Fig. 2 this irregularity degree result in
There is deviation in the image for scanning, testing result cannot accurately reflect actual conditions with actual product.
Chinese patent CN101249590 discloses a kind of ultraviolet laser cutting machine tool for R＆F plates, including：Laser Focusing
The vacuum pumping platform system of scanning system, software control system and positioning R＆F plates, wherein, R＆F plates include hardboard part and flexibility
Circuit plate part, the software control system will control the hardboard part of R＆F plates and the program of flexible circuitry plate part to set respectively
It is set to hardboard control module program and FPC control module program, the Laser Focusing scanning system is respectively according to software
The hardboard control module program and FPC of control system control module program to the hardboard portion in vacuum pumping platform system
Divide and flexible circuitry plate part carries out cutting processing.
Chinese patent CN101742822A discloses a kind of method that hardboard is peeled off in FPC area in rigid-flex, main
If press a FPC and an at least internal layer hardboard with pressing step together, and FPC is locally exposed and
A FPC area is formed, hardboard portion to be removed in rigid-flex can be removed by easy rote using the technology
Point, solving traditional technology must ask by taking to take a lot of work derived from the technological processes such as laser cutting, exposure imaging, etching, striping
Topic.
Detection method after a kind of FPC Laser Processing of the invention, can be smooth by FPC before detection
On lamp box surface, when lamp box is placed on scanner, glass of the FPC also just with scanner is close to one for ground absorption
Rise, so as to solve the problems, such as that FPC cannot be close to scanner glass surface.
The content of the invention
When the technical problems to be solved by the invention are that FPC is detected after laser machining in the prior art, flexible wires
Road plate cannot be close to the problem of scanner glass surface.The present invention provides the detection after a kind of new FPC Laser Processing
Method, the method can entirely adsorb FPC on lamp box surface, when lamp box is placed on scanner, flexible wires
Road plate is close together with the glass of scanner.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：After a kind of FPC Laser Processing
Detection method, including following several steps：
a）The FPC after Laser Processing is taken, after being fixed using absorption type lamp box, the work of scanner detection is put in
On platform；
b）Progressive scan is combined with stepper motor using linear ccd equipment, soft board image is obtained；
c）By recognizer, image split shed and line are converted into figure；
d）On two diagonal vertex positions of soft board, P1 and the dot patterns of P2 two mark are set, by P1 and P2 pictorial symbolizations
Aligned at the beginning of carrying out at 2 points；
e）One scope of parameter D of setting, represent the centre of figure position deviation of design configuration center and corresponding identification away from
From minimum value Dmin and maximum Dmax, wherein Dmin and Dmax are both greater than 0；
f）Since P1 points, according to certain recognition sequence, opening and the scribe pattern of soft board are recognized one by one；It is current to know
When other centre of figure is less than Dmin with the position deviation at design configuration center, continue next figure identification；Current identification figure
When the position deviation at center and design configuration center is between Dmin and Dmax, judge that off normal can receive, identification is correct, according to
Deviation translates positioning whole figure again makes design configuration center and identification centre of figure overlap；Current identification centre of figure with
When the position deviation at design configuration center is more than Dmax, identification off normal mistake is differentiated, continue next figure identification；
g）According to step f）Differentiation and re-positioning method, pointwise identification, positioning, until recognizing to angular vertex P2
Point.
In above-mentioned technical proposal, recognition sequence is：From P1 points, by zigzag order, P2 points, normal soft board are recognized
The deviation D that out-of-flatness causes is one progressive, the process for progressively accumulating.If partial deviations D undergos mutation, soft board is judged
Fold or displacement are unacceptable, reposition.Dmax values determine differentiate off normal mistake thresholding, Dmax closer to Dmin values,
The two neighboring graph position deviation for allowing is smaller, it is desirable to which local accuracy is higher.
Fixing means before being detected after the FPC Laser Processing, including following several steps：
a）The FPC after Laser Processing is taken, is placed on the aperture of the glass surface of absorption type lamp box；
b）On the glass surface of absorption lamp box, blank sheet of paper is used in the place beyond blank sheet of paper edge is Chong Die with FPC
Aperture, blank sheet of paper edge and FPC imbricate are covered, and FPC edge is pushed down at blank sheet of paper edge；
c）The device of the air-breathing of absorption lamp box is opened, the FPC for being placed on lamp box glass surface is filled in air-breathing
Put and be adsorbed on the glass surface under suction condition；
d）FPC is adsorbed behind lamp box surface, is put on the workbench of scanner detection, and soft board is close to be swept
Retouch instrument glass surface；
Wherein, the lamp box includes glass surface, and the glass surface has dot matrix aperture, near glass in lamp box
Glass surface side has getter device.
In above-mentioned technical proposal, preferred technical scheme is that dot matrix hole separation is uniform, matrix arrangement.Preferably
Technical scheme is that getter device is Electrodynamic air pump or air bag.Preferred technical scheme is that glass surface is smooth and smooth table
Face.Preferred technical scheme is, after FPC is placed on glass surface, the place blank sheet of paper beyond FPC
Glass surface aperture in covering.
In the present invention, the dot matrix of Small Holes is made in lamp box glass surface, while needing to ensure the lattice plane of glass surface
Smoothness and flatness；One device of air-breathing is installed in the glass side of addition, lamp box Glass-faced flexible wiring board exists
Can be by adsorbed close on glass, while the place beyond lamp box FPC needs to be covered with blank sheet of paper under suction condition
（Blank sheet of paper edge is Chong Die with FPC, blocks the aperture beyond FPC, while helping to compress FPC）,
FPC can be now positioned to it is more smooth, FPC adsorb behind lamp box surface, handle with care in scanner
On the workbench of detection, FPC can be close to scanner glass surface, and scanner can obtain effect preferably schemes
Picture, improves the degree of accuracy of measurement.
When the present invention solves detection FPC, its flexibility result in flexible board can not be close to the glass table of scanner
Face, this irregularity degree result in the image for scanning and there is deviation with actual product, and testing result cannot accurately reflect reality
A kind of problem of border situation, absorption type lamp box of invention, can entirely adsorb FPC on lamp box surface,
When lamp box is placed on scanner, glass of the FPC also just with scanner is close together, and achieves preferably
Technique effect.
Brief description of the drawings
Fig. 1 is scanner overall diagram.
Fig. 2 is FPC flatness effect figure.
Fig. 3 is absorption type lamp box glass bottom surface schematic diagram.
Fig. 4 is the profile of absorption type lamp box.
Fig. 5 is the FPC flatness effect figure in the case of air-breathing.
Fig. 6 is that FPC aligns schematic diagram.
Fig. 7 is FPC detection ordering schematic diagram.
In Fig. 3,1 is bottom surface aperture.
In Fig. 4,1 is lamp；2 is air-breathing.
Below by specific embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Specific embodiment
【Embodiment 1】
A kind of detection method after FPC Laser Processing, including following several steps：
a）The FPC after Laser Processing is taken, after being fixed using absorption type lamp box, the work of scanner detection is put in
On platform；
b）Progressive scan is combined with stepper motor using linear ccd equipment, soft board image is obtained；
c）By recognizer, image split shed and line are converted into figure；
d）On two diagonal vertex positions of soft board, P1 and the dot patterns of P2 two mark are set, by P1 and P2 pictorial symbolizations
Aligned at the beginning of carrying out at 2 points；
e）One scope of parameter D of setting, represent the centre of figure position deviation of design configuration center and corresponding identification away from
From minimum value Dmin and maximum Dmax, wherein Dmin and Dmax are both greater than 0；
f）Since P1 points, according to certain recognition sequence, opening and the scribe pattern of soft board are recognized one by one；It is current to know
When other centre of figure is less than Dmin with the position deviation at design configuration center, continue next figure identification；Current identification figure
When the position deviation at center and design configuration center is between Dmin and Dmax, judge that off normal can receive, identification is correct, according to
Deviation translates positioning whole figure again makes design configuration center and identification centre of figure overlap；Current identification centre of figure with
When the position deviation at design configuration center is more than Dmax, identification off normal mistake is differentiated, continue next figure identification；
g）According to step f）Differentiation and re-positioning method, pointwise identification, positioning, until recognizing to angular vertex P2
Point.
Fixing means before being detected after the FPC Laser Processing, including following several steps：
a）The FPC after Laser Processing is taken, is placed on the aperture of the glass surface of absorption type lamp box；
b）On the glass surface of absorption lamp box, blank sheet of paper is used in the place beyond blank sheet of paper edge is Chong Die with FPC
Aperture, blank sheet of paper edge and FPC imbricate are covered, and FPC edge is pushed down at blank sheet of paper edge；
c）The device of the air-breathing of absorption lamp box is opened, the FPC for being placed on lamp box glass surface is filled in air-breathing
Put and be adsorbed on the glass surface under suction condition；
d）Soft board is adsorbed behind lamp box surface, is put on the workbench of scanner detection, and soft board is close to scanner glass
Glass surface；
Wherein, the lamp box includes glass surface, and the glass surface has dot matrix aperture, near glass in lamp box
Glass surface side has getter device.
【Embodiment 2】
The absorption type lamp box detected after a kind of Laser Processing for FPC, including glass surface, the glass table
Face has dot matrix aperture, has getter device near glass surface side in lamp box, is placed on lamp box glass surface
FPC can be adsorbed on the glass surface under getter device suction condition.
Lamp box glass surface make Small Holes dot matrix, while need ensure glass surface lattice plane smoothness and
Flatness；One device of air-breathing, as shown in Figure 3,4, lamp box Glass-faced flexible wiring board are installed in the glass side of addition
Can be by adsorbed close on glass, while the place beyond lamp box FPC needs to be covered with blank sheet of paper under suction condition
On（Blank sheet of paper edge is Chong Die with FPC, blocks the aperture beyond FPC, while helping to compress flexible circuitry
Plate）, FPC can be now positioned to it is more smooth, as shown in Figure 5.FPC is adsorbed behind lamp box surface, small
The heart is put down gently on the workbench of scanner detection, and FPC can be close to scanner glass surface, and scanner can be obtained
To effect better image, the degree of accuracy of measurement is improved.
【Embodiment 3】
A kind of multiple alignment detecting method of soft board self adaptation, as shown in Figure 6, Figure 7, including following following steps：Make
Progressive scan is combined with stepper motor with linear ccd equipment, soft board image is obtained；By recognizer, by image split shed and
Line is converted into figure；
On two diagonal vertex positions of soft board, P1 and the dot patterns of P2 two mark are set, are entered by P1 and P2 pictorial symbolizations
Aligned at the beginning of 2 points of row；One scope of parameter D of setting, represents the centre of figure position deviation of design configuration center and corresponding identification
The minimum value Dmin and maximum Dmax of distance, wherein Dmin and Dmax are both greater than 0；
Since P1 points, according to certain recognition sequence, opening and the scribe pattern of soft board are recognized one by one；Current identification figure
When shape center is less than Dmin with the position deviation at design configuration center, continue next figure identification；Current identification centre of figure
During with the position deviation at design configuration center between Dmin and Dmax, judge that off normal can receive, identification is correct, according to deviation
Value translates positioning whole figure again makes design configuration center and identification centre of figure overlap；Current identification centre of figure and design
When the position deviation of centre of figure is more than Dmax, identification off normal mistake is differentiated, continue next figure identification；
According to step e）Differentiation and re-positioning method, pointwise identification, positioning, until recognizing to angular vertex P2 points.
Recognition sequence is：From P1 points, by zigzag order, P2 points, the deviation that normal soft board out-of-flatness causes are recognized
D is one progressive, the process for progressively accumulating.If partial deviations D undergos mutation, judge that soft board fold or displacement can not connect
Receive, reposition.Dmax values determine differentiate off normal mistake thresholding, Dmax is closer to Dmin values, it is allowed to two neighboring figure
Shaped position deviation is smaller, it is desirable to which local accuracy is higher.
Claims (10)
1. a kind of detection method after FPC Laser Processing, including following several steps：
A) FPC after Laser Processing is taken, after being fixed using absorption type lamp box, the workbench of scanner detection is put in
On；
B) progressive scan is combined with stepper motor using linear ccd equipment, is obtained soft board image；
C) by recognizer, image split shed and line are converted into figure；
D) on two diagonal vertex positions of soft board, P1 and the dot patterns of P2 two mark are set, are carried out by P1 and P2 pictorial symbolizations
Aligned at the beginning of 2 points；
E) scope of parameter D is set, the centre of figure position deviation distance of design configuration center and corresponding identification is represented
Minimum value Dmin and maximum Dmax, wherein Dmin and Dmax are both greater than 0；
F) since P1 points, according to certain recognition sequence, opening and the scribe pattern of soft board are recognized one by one；Current identification figure
When center is less than Dmin with the position deviation at design configuration center, continue next figure identification；Current identification centre of figure with
When the position deviation at design configuration center is between Dmin and Dmax, judge that off normal can receive, identification is correct, according to deviation
Again translation positioning whole figure makes design configuration center and identification centre of figure overlap；Current identification centre of figure and design drawing
When the position deviation at shape center is more than Dmax, identification off normal mistake is differentiated, continue next figure identification；
G) according to step f）Differentiation and re-positioning method, pointwise identification, positioning, until recognizing to angular vertex P2 points.
2. the detection method after FPC according to claim 1 Laser Processing, it is characterised in that recognition sequence is：
From P1 points, by zigzag order, P2 points are recognized.
3. the detection method after FPC according to claim 1 is laser machined, it is characterised in that normal soft board is not
The smooth deviation D for causing is one progressive, the process for progressively accumulating.
4. the detection method after FPC according to claim 1 is laser machined, it is characterised in that if local inclined
Difference D undergos mutation, then judge that soft board fold or displacement are unacceptable, repositions.
5. the detection method after FPC according to claim 1 is laser machined, it is characterised in that Dmax values are determined
Differentiate the thresholding of off normal mistake, Dmax is closer to Dmin values, it is allowed to two neighboring graph position deviation it is smaller, local accuracy
It is higher.
6. the detection method after FPC according to claim 1 is laser machined, it is characterised in that step a）In it is soft
Property wiring board detection before fixing means, including following several steps：
The FPC after Laser Processing is taken, is placed on the aperture of the glass surface of absorption type lamp box；
On the glass surface of absorption lamp box, the place beyond blank sheet of paper edge is Chong Die with FPC is covered with blank sheet of paper
Aperture, blank sheet of paper edge and FPC imbricate, and FPC edge is pushed down at blank sheet of paper edge；
The device of the air-breathing of absorption lamp box is opened, makes to be placed on the FPC of lamp box glass surface in getter device air-breathing shape
It is adsorbed on the glass surface under state；
FPC is adsorbed behind lamp box surface, is put on the workbench of scanner detection, and soft board is close to scanner glass
Glass surface；
Wherein, the lamp box includes glass surface, and the glass surface has dot matrix aperture, near glass table in lamp box
Face side has getter device.
7. the detection method after FPC according to claim 6 is laser machined, it is characterised in that dot matrix aperture
Interval is uniform, matrix arrangement.
8. the detection method after FPC according to claim 6 Laser Processing, it is characterised in that getter device is
Electrodynamic air pump or air bag.
9. the detection method after FPC according to claim 6 Laser Processing, it is characterised in that glass surface is
Smooth and flat surface.
10. the detection method after FPC according to claim 6 is laser machined, it is characterised in that FPC
After being placed on glass surface, the place beyond FPC covers glass surface aperture with blank sheet of paper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015730.XA CN103217427B (en) | 2012-01-19 | 2012-01-19 | Detection method after FPC Laser Processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015730.XA CN103217427B (en) | 2012-01-19 | 2012-01-19 | Detection method after FPC Laser Processing |
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| CN103217427A CN103217427A (en) | 2013-07-24 |
| CN103217427B true CN103217427B (en) | 2017-06-06 |
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| CN105588841A (en) * | 2016-01-28 | 2016-05-18 | 浙江工业大学 | Stitch inclination defect detection device based on machine vision |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4942814A (en) * | 1989-08-10 | 1990-07-24 | Shinohara Machinery Co., Ltd. | Operation stand for measuring sheet size for sheet-fed press |
| US6584413B1 (en) * | 2001-06-01 | 2003-06-24 | Sandia Corporation | Apparatus and system for multivariate spectral analysis |
| CN101117043A (en) * | 2006-08-04 | 2008-02-06 | 株式会社日立工业设备技术 | Screen printing device and image recognition alignment method |
| CN101288921A (en) * | 2007-04-19 | 2008-10-22 | 深圳市大族激光科技股份有限公司 | Laser device for cutting |
| CN102156136A (en) * | 2011-03-14 | 2011-08-17 | 浙江展邦电子科技有限公司 | Method for detecting PCB negative film |
| CN201970115U (en) * | 2010-11-30 | 2011-09-14 | 中国科学院大连化学物理研究所 | Vacuum adsorbing device used for fixing thin-wall planar workpiece |
-
2012
- 2012-01-19 CN CN201210015730.XA patent/CN103217427B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4942814A (en) * | 1989-08-10 | 1990-07-24 | Shinohara Machinery Co., Ltd. | Operation stand for measuring sheet size for sheet-fed press |
| US6584413B1 (en) * | 2001-06-01 | 2003-06-24 | Sandia Corporation | Apparatus and system for multivariate spectral analysis |
| CN101117043A (en) * | 2006-08-04 | 2008-02-06 | 株式会社日立工业设备技术 | Screen printing device and image recognition alignment method |
| CN101288921A (en) * | 2007-04-19 | 2008-10-22 | 深圳市大族激光科技股份有限公司 | Laser device for cutting |
| CN201970115U (en) * | 2010-11-30 | 2011-09-14 | 中国科学院大连化学物理研究所 | Vacuum adsorbing device used for fixing thin-wall planar workpiece |
| CN102156136A (en) * | 2011-03-14 | 2011-08-17 | 浙江展邦电子科技有限公司 | Method for detecting PCB negative film |
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